yeah I agree, encourage DF if you can. We went to one second time around (after a very difficult BF'ing r/ship first time - EE'ed instead). My DH was confident he knew EVERYTHING and for sure didn't need to attend, after all it's all about the boobs right? But I convinced him, and while there were definitely bits we both knew... we both came away saying... oh boy , we learned some crucial stuff!! He said he learned more about how to support me, that he hadn't realised he didn't know IYKWIM.